CN1854371B - Compress device of sewing machine - Google Patents
Compress device of sewing machine Download PDFInfo
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- CN1854371B CN1854371B CN2006100799151A CN200610079915A CN1854371B CN 1854371 B CN1854371 B CN 1854371B CN 2006100799151 A CN2006100799151 A CN 2006100799151A CN 200610079915 A CN200610079915 A CN 200610079915A CN 1854371 B CN1854371 B CN 1854371B
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Abstract
A presser foot apparatus for a sewing machine has a presser foot drive source enabling a presser foot member which presses processing fabric to approach and separate relative to the processing fabric, and an operation body operated by an operator and indicating the start and stop of a sewing machine motor, and is characterized by comprising: an operation amount detection part for detecting the operation amount of the operator to the operation body; and a drive source control part for controlling the presser foot drive source to move the presser foot member to a position corresponding to the operation amount of the operator detected by the operation amount detection part, and meanwhile controlling the presser foot drive source to move in a speed corresponding to an operation speed of the operator.
Description
Technical field
The present invention relates to a kind of operational ton of operating body being operated according to the operator and make the cloth-pressing device of relative this machining cloth of the compress member of pushing machining cloth near the Sewing machines that separates.
Background technology
With the stitching sewing machine machining cloth time, normally under the state of pushing machining cloth by the compress member, carry out.Particularly in industrial sewing machines; In order to improve operating efficiency; The operator can not use hand but utilize the knee of oneself to operate kneepad or utilize pin to operate foot-operated pedal, makes the compress member carry out lifting action thereby drive electric actuator, and can indicate and make beginning.
For example, japanese discloses the presser lifting device of the Sewing machines of record in clear and 62 years No. 101287 communiques (JP62-101287A), is provided with: the actuating mechanism that is made up of the depression bar that presser feet is installed, handler, connecting rod and actuating strut etc.; Make the solenoid of presser feet up-down through the action of this actuating mechanism; And the momental potentiometer of the potentiometer of the operational ton of detecting operation body and detection solenoid etc.According to operator's knee the operational ton of operating body is driven solenoid, can make the height and position of presser feet move to height arbitrarily, indicate through the foot-operated operating pedal of stepping on other setting and make beginning.
Japanese discloses the Sewing machines of putting down in writing in No. 326017 communique (JP2003-326017A) in 2003, drives presser feet with the presser foot lifter motor.The operator is under the state of not stepping on presser feet height setting pedal; Make presser feet be in predefined maximum height position through guidance panel; The operator steps on one grade of presser feet height setting pedal; Presser feet just drops to smallest height, if down step on one grade of presser feet height setting pedal again, then begins to make.
In the presser lifting device of above-mentioned Sewing machines, can to the operational ton of operating body the height and position of presser feet be adjusted to height arbitrarily according to the operator, but in order to begin to make another operating pedal that must tramp with one's feet down, operability is poor.Except operating body, also need in addition setting operation pedal again, so cost increases.Cause the presser feet descending operation and make the beginning complicated operationization.The service speed of body even speed operations, the speed that moves up and down of presser feet can not change yet, and has problems such as operation property difference.
In above-mentioned Sewing machines, only need, but when the maximum height position of change presser feet, must set with guidance panel at every turn with the height and position of a presser feet height setting pedal with regard to variable presser feet, operability is poor.Maximum height position that presser feet is stopped at set and the optional position between the smallest height.Even accelerate the service speed of presser feet height setting pedal, the speed that moves up and down of presser feet can not change yet, and has problems such as operation property difference.
Summary of the invention
The object of the present invention is to provide the corresponding arbitrary height position of a kind of operational ton that makes the compress member move to the operating body of operating with the operator, can make the compress member to move, can make the move operation of compress member to oversimplify and can improve the cloth-pressing device of the Sewing machines of the operation property of making operation rapidly with the corresponding speed of the service speed of operating body.
The cloth-pressing device of Sewing machines of the present invention; Have: make the compress member of pushing machining cloth near or the operating body that leaves the compress drive source of machining cloth, operate and indicate electrical motor of sewing machine to start or stop by the operator; It is characterized in that, comprising: detect the operational ton test section of operator the operational ton of said operating body; And drive source control part; This drive source control part is controlled said compress drive source and said compress member is moved on the position corresponding with the operational ton of the detected said operating body of said operational ton test section, controls said compress drive source simultaneously and said compress member is moved with the speed corresponding with the service speed of said operating body.
Adopt this formation, when making beginning, in case operator's operating operation body, then the operational ton test section detects this operational ton.Drive source control part control compress drive source moves on the position corresponding with the operational ton of operating body the compress member, controls the compress member simultaneously and moves with the speed corresponding with the service speed of operating body.
Description of drawings
Fig. 1 is the side view of the automatic figure knotting Sewing machines of expression one embodiment of the invention.
Fig. 2 is for seeing the stereogram of automatic figure knotting Sewing machines from the rear.
Fig. 3 is the in-built side view of automatic figure knotting Sewing machines.
Fig. 4 is the block diagram of the control system of automatic figure knotting Sewing machines.
Fig. 5 is the front view of guidance panel.
Fig. 6 is the figure of the setting data of expression actuating speed table.
Fig. 7 detects the figure of the setting data of potential pulse numerical table for expression.
The flow chart that Fig. 8 goes up and down to control for the compress member.
Fig. 9 sets the flow chart of control for lifting position.
Figure 10 A is the figure of the potentiometric detection change in voltage of expression.
Figure 10 B is the figure of the height and position variation of expression compress member.
The specific embodiment
The present invention is described with reference to the accompanying drawings in further detail.What accompanying drawing was represented is that the present invention is applied in the embodiment on the automatic figure knotting Sewing machines (circulating sewing machine).
Like Fig. 1, shown in Figure 2, automatic figure knotting Sewing machines 1 has: carry the support portion 2 on operation post 8 of putting; Found the post portion 5 on the rearward end that is located at support portion 2; And be darted at the horn portion 6 on the upper end of post portion 5 in opposite directions with support portion 2.
Cloth-pressing device 20 to rectangular box-like compress member 24 is moved up and down is made an explanation.Cloth-pressing device 20 moves up at fore-and-aft direction and right and left with cloth pushing table 13.Like Fig. 1～shown in Figure 3, see sweeping pressure arm 21 from the side, its base end part (rearward end) be fixed on cloth pushing table 13 above, form cantilevered bearing state thus, have the compress member installation portion 21a of supporting compress member 24 usefulness at its leading section.
The axle 22 that has left and right directions at the fore-and-aft direction central portion of pressure arm 21.Be equipped with the pressure arm handle 23 (only illustrating 1) that extends along fore-and-aft direction respectively in the left and right sides of pressure arm 21, the substantial middle portion of the fore-and-aft direction of each pressure arm handle 23 is rotatably supported on the axle 22.
Said compress member installation portion 21a can support the connecting portion 24a of compress member 24 with moving up and down.The connecting portion 24a of compress member 24 has hole (not shown), and the leading section of said pressure arm handle 23 is inserted from the rear respectively and led to this hole, and pressure arm handle 23 is connecting compress member 24.The rearward end of pressure arm handle 23 is connected with the upper end of the spring axis of guide 25 rotationally, the bottom of the spring axis of guide 25 can be bearing on the spring member to undertake 26 of pressure handle 21 along the vertical direction slidably.Compression helical spring 27 is positioned between the spring carrier (not shown) of spring carrier (not shown) and spring member to undertake 26 of the spring axis of guide 25, and the periphery of the spring axis of guide 25 is surrounded.
The result is, in Fig. 1 and Fig. 3, it is the center along counterclockwise rotating with axle 22 that compression helical spring 27 utilizes its elastic force to make a pair of pressure arm handle 23, and compress member 24 carries through cloth on its down position puts the upper surface of plate 16 by eedle presser 12.Cloth carries to be put plate 16 and can be provided with as required, and compress member 24 is directly by the upper surfaces of eedle presser 12 when not being provided with.
Pressure arm handle 23 the axle 22 rear sides the left and right sides, fixing push action plate 28 respectively through bolt 29.When moving up and down during member 47 down maneuvers on the framework that can be bearing in horn portion 6, the horizontal plate 47a of member 47 lower ends that move up and down moves push action plate 28 downwards with moving up and down.The pressure arm handle 23 of pairing left and right is followed moving of push action plate 28, overcomes the elastic force of compression helical spring 27 and is that rotating fulcrum carries out clockwise direction and rotates with axle 22, and compress member 24 rises to the lifting position of needle plate 12 upsides.Push action plate 28 utilizes the elastic force of compression helical spring 27 and conflicts with the plate 47a of member 47 lower ends that move up and down all the time, and moving up and down can not produce the gap between member 47 and the push action plate 28.
As shown in Figures 2 and 3, be provided with the plate part 30 that can the rear side of post portion 5 be covered, the roughly fixed mount 31 of U word shape is installed on framework in the inside of post portion 5 in post portion 5.On the right side wall portions 31a of fixed mount 31, fix compress motor (compress drive source) 32, on the driving shaft of compress motor 32, fixing driven wheel 33.The downside of fixed mount 31 becomes the connecting wall portion that connects this right side wall portions 31a and the 31b of left side wall portion, and the rear side of connecting wall portion and upper side are open respectively.
Rotatably mounted 1 cam bolster 34 of left and right directions on the right side wall portions 31a of fixed mount 31 and the 31b of left side wall portion.On this cam bolster 34, begin disposing successively and the driven gear 35 of driven wheel 33 engagements and the compress cam 36 of compress action usefulness from the right side, and fix with hold-down screw.Driven gear 35 is integrally formed with compress cam 36, utilizes shared hold-down screw to remove and is fixed on regularly on the cam bolster 34.
Fixing the axle 40 of left and right directions in the upper end of the right side wall portions 31a of fixed mount 31 and the 31b of left side wall portion, this 40 rotatably support and is seen the 1st pressure handle 41 that is L word shape from the side.Can push the lower end that is being connected the driving side shank 41a of the 1st pressure handle 41 with roller 42 from what the cam surface of the place ahead and compress cam 36 was conflicted.The slave end shank 41b of the 1st pressure handle 41 is connecting the rearward end of pushing connecting rod 43 of fore-and-aft direction.Axle 44 is fixed on the framework of horn portion 6, this 44 rotatably support the 2nd pressure handle 45 of L word shape.The said leading section of pushing connecting rod 43 is connecting the driving side shank 45a of the 2nd pressure handle 45.
The slave end shank 45b of pin 46 and the 2nd pressure handle 45 is affixed, but the block 48 that fore-and-aft direction slides is set on the member 47 that moves up and down, and this block 48 is connecting sells 46.One end of draft helical spring 49 is connected with the slave end shank 41b of the 1st pressure handle 41, the other end of draft helical spring 49 is connected with framework, push with roller 42 and the 1st pressure handle 41 is applied rotatory force with the form of the cam surface of pushing compress cam 36 all the time.
For example, when the clockwise direction of compress motor 32 in Fig. 3 rotated, the bending action cam part of compress cam 36 made to push with roller 42 and moves, and cam bolster 34 rotates along the clockwise direction among Fig. 3.The 1st pressure handle 41 counterclockwise rotates, and through pushing connecting rod 43 the 2nd pressure handle 45 clockwise directions is rotated.Thus, the member 47 that moves up and down rises, and removes the pressing action of plate 47a to push action plate 28, so pressure arm handle 23 counterclockwise rotates, the compress member 24 that is connected with the leading section of pressure arm handle 23 moves to down position from lifting position decline predetermined distance.
As shown in Figure 1, below operation post 8, fixing control cabinet B, control cabinet B goes up affixed axle 51, and axle 51 rotates and is supporting handler 52 freely.This handler 52 utilizes the elastic force of draft helical spring 53 and rotates to counter clockwise direction all the time.Directly over handler 52, have brake block 54, this brake block 54 is conflicted the anticlockwise turned position of limit rotation handle 52 from upside and handler 52.The base end part of handler 52 connecting can with handler 52 driving shaft of the potentiometers 55 of rotation synchronously.
Foot pedal 57 (being equivalent to operating body) is provided with on the ground, and the leading section of the opening-closing plate 57a of foot pedal 57 is connecting an end of connecting rod 56, and the other end of connecting rod 56 is connecting the leading section of handler 52.This opening-closing plate 57a utilizes the elastic force of draft helical spring 53 and on release position shown in Figure 1, is opening.The opening-closing plate 57a in case the operator tramps with one's feet down, then handler 52 clockwise direction rotation, the driving shaft of potentiometer 55 rotation simultaneously through connecting rod 56.Potentiometer 55 will be corresponding with the anglec of rotation of driving shaft 60 outputs of the control device stated backward of detection voltage.
Below with reference to the control system of the block diagram illustrating automatic figure of Fig. 4 knotting Sewing machines 1.
On the input/output interface 61 of control device 60, connecting guidance panel 66, potentiometer 55, drive circuit 68～71.Drive circuit 68 is used for electrical motor of sewing machine 9; Drive circuit 69 is used for driving along directions X through the directions X driving mechanism of being located at cloth-feeding device the X motor 72 of cloth pushing table 13; The Y direction driving mechanism that drive circuit 70 is used for through being located at cloth-feeding device drives the Y motor 73 of cloth pushing table 13 along the Y direction, and drive circuit 71 is used for compress motor 32.On input/output interface 61, connecting the initial point of being located at the directions X driving mechanism and setting the directions X origin sensor 74 of usefulness and the Y direction origin sensor 75 of the initial point setting usefulness of being located at Y direction driving mechanism again.
It is N encoder 32E that the driving shaft of compress motor 32 is provided with rotary encoder.This N encoder 32E is used to detect the actual rotation amount of compress motor 32, comprising: have at the grooving that circumferentially separates with suitable spacing, also can be fixed on the disc on the said driving shaft together rotatably; And have across this disc illuminating part in opposite directions and the detector of light accepting part.
Compress motor 32 is made up of stepper motor, and its resolution ratio for example is 800 pulses.Compress motor 32 every rotation 1 circles, 800 code signals of N encoder 32E output of compress motor 32.During drive controlling compress motor 32, through using as FEEDBACK CONTROL from the code signal of N encoder 32E, can be reliably and correctly discern compress motor 32 and have or not imbalance.
Store in advance among the ROM63 drive controlling program of various driving mechanisms, various styles make control program and after the go up and down control program etc. of control of the distinctive compress member of the present invention of stating.In ROM63, store actuating speed table T1 shown in Figure 6 and detection potential pulse numerical table T2 shown in Figure 7.
Actuating speed table T1 is by regulation and the number of drive pulses of drive pressure cloth component 24 and drive the information formation of the corresponding actuating speed (translational speed of compress member 24) of the driving frequency of compress motor 32.
Corresponding to the termination zone of stepping on the beginning side of foot pedal 57, with the continuous operating space in this terminations zone, with this operating space continuous make the zone, detect potential pulse numerical table T2 by about the detection voltage value (V) of potentiometer 55 outputs, detect the drive amount information formation of the driving of voltage value with the number of drive pulses of transformed value (the height and position information of compress member 24), driving compress motor 32 based on this.The so-called zone of ending is meant that the operator only is placed on pin on the foot pedal 57, does not make 24 actions of compress member and the zone of setting.
Driving is that detection voltage value with potentiometer 55 is multiplied by the COEFFICIENT K of regulation and the height and position information that is used to ask for number of drive pulses that obtains with transformed value.When driving is in " 75～99 " scope with transformed value; Compress member 24 is in ends the zone; When driving is in " 100～165 " scope with transformed value; Compress member 24 is in operating space, and when driving was in " 166～170 " scope with transformed value, compress member 24 is in made the zone.
Flash memory 65 be can the rewriting of electric property nonvolatile memory, the lifting position that can store the compress member 24 that the height and position setting key 66b of a plurality of use guidance panels 66 sets.RAM64 not only has the storage confession and makes the stitch data storage area of the stitch data of usefulness, and has the various storage areas that can store by the operation result after the CPU62 calculation process.
The compress member of carrying out with reference to the control device 60 of the flowchart text automatic figure of Fig. 8 and Fig. 9 knotting Sewing machines 1 below control of going up and down.Symbol Si (i=11,12,13 among the figure ...) be each step.
Before this control beginning, the operator can use guidance panel 66 to set the lifting position of compress member 24 in advance arbitrarily as required.This lifting position of flowchart text with reference to Fig. 9 is set control.Any setting that should be noted that the lifting position of this compress member 24 is not the treatment step that must carry out.For device is simply changed, also can not set lifting position arbitrarily but predetermined fixed in the precalculated position.
In a single day the operator operates the height and position setting key 66b of guidance panel 66, and CPU62 begins this control immediately.CPU62 at flash memory 65 when preestablishing the lifting position that stores compress member 24; Read this setting lifting position data (S41); Set lifting position data-driven compress motor 32 according to this, compress member 24 moves to this setting lifting position (S42).
The operator carries out height and position and regulates, and when the height and position of this compress member 24 is lower than desired locations, regulates toward high, when the height and position of compress member 24 is higher than desired locations, regulates toward low.When the operator has operated upwarding key 66h (S43: be, S44: be), CPU62 increases with ormal weight (amount that for example is equivalent to about 1mm) and sets lifting position (S45), and compress member 24 increases part with this and rises accordingly and move (S46).When the operator has operated down Arrow 66g (S43: be, S44: not, S47: be), CPU62 reduces with ormal weight (amount that for example is equivalent to about 1mm) and sets lifting position (S48), and compress member 24 reduces part descend accordingly mobile (S49) with this.When the operator has finally operated height and position setting key 66b (S43: be, S44: not, S47: not, S50: be); The setting lifting position (S51) of CPU62 updated stored in flash memory 65; Corresponding to the lifting position of new settings and the distance of pushing the down position of machining cloth W; The drive amount of compress motor 32 is altered to the scope (S52) of setting lifting position and down position, finishes this control.
For example; In detecting potential pulse numerical table T2 (with reference to Fig. 7); When the lifting position at operator's new settings is " 23.1mm "; This height and position is equivalent to " 36 " number of drive pulses, so this 36 segment pulse of respective change, the drive amount of compress motor 32 before making beginning is altered to 360 (=396-36) pulses with respect to 396 pulses.
Flowchart text compress member with reference to Fig. 8 goes up and down to control.After the boundary voltage C that states end the voltage value (being " 2.00V " for example) that zone and operating space join according to Figure 10.When beginning this control, compress member 24 is set control through above-mentioned lifting position and has been moved to the setting lifting position.
When beginning to control, CPU62 reads in (S11) with the detection voltage value of potentiometer 55 outputs as " detecting voltage A ".Then, when having passed through regulation small time (for example tens of msec) (S12: be), CPU62 reads in (S13) with the detection voltage value of potentiometer 55 outputs as " detecting voltage B " once more.
Belong to and end zone (S14: be) and detect voltage A to belong to when ending zone (S25: be) yet when detecting voltage B, CPU62 does not carry out the down maneuver of compress member 24 and returns S13.Do not belong to and end the zone and belong to operating space (S14: not) and detect voltage A and belong to when ending zone (S15: be), CPU62 does not write boundary voltage C and detects among the voltage A (S16), and S17 divides a word with a hyphen at the end of a line when detecting voltage B.Belong to and end zone (S14: be) and detect voltage A not belong to and end the zone and belong to operating space (S25: in the time of not), CPU62 writes boundary voltage C and detects among the voltage B (S26), and S17 divides a word with a hyphen at the end of a line when detecting voltage B.When detect voltage B do not belong to end zone (belonging to operating space) (S14: be) and detect voltage A do not belong to yet end zone (belonging to operating space) (S15: in the time of not), the CPU62 S17 that divides a word with a hyphen at the end of a line.
(S17: not) when detecting increase part that voltage B detects voltage A relatively, when having vibration because of foot pedal 57 to cause to detect the possibility that voltage B increases less than a reference value (for example 0.06V); It is invalid that CPU62 is regarded as this increase; Return S13, carry out the later step of S13 repeatedly.
When the operator reduces the depression amount to foot pedal 57, when compress member 24 rises, detect voltage B less than detecting voltage A.This occasion is because of not being detects the increase part that voltage B detects voltage A relatively, so CPU62 asks for as absolute value.
When detecting increase part that voltage B detects voltage A relatively when a reference value is above, when the operator steps on foot pedal 57 (S17: be), CPU62 computing respectively detects the actuating speed (rising of compress member 24 or decrease speed) of the corresponding compress motor 32 of voltage A and the voltage difference of detection voltage B and the object height position (S18) of compress member 24 with these.
Specifically; CPU62 according to the detection potential pulse numerical table T2 of Fig. 7 ask for the number of drive pulses A corresponding with detecting voltage A and with detect the corresponding number of drive pulses B of voltage B, the difference of obtaining the relative number of drive pulses A of number of drive pulses B i.e. the number of drive pulses N of reality.Secondly, it is speed K that CPU62 obtains with the corresponding driving frequency of this number of drive pulses N according to actuating speed table T1.
Then, CPU62 drives compress motor 32 according to speed K that obtains among the S18 and number of drive pulses N, makes compress member 24 promptly move to object height position (S19) with this speed K.Not when making the value of beginning, be not (S20: not) when belonging to the value of making the zone when detecting voltage B; CPU62 will detect voltage B and write among the detection voltage A (S27); Return S13 when having passed through regulation small time (S28: be), carry out the later step of S13 repeatedly.
When detecting voltage B is (S20: be) when making the value of beginning, and CPU62 continues to drive compress motor 32 with ormal weight, utilizes the effect of cloth-pressing device 20 that compress member 24 is descended, and puts the machining cloth W (S21) on needle plate 12 with the pressing force of regulation by ballast.CPU62 output drives the enabled instruction (S22) of electrical motor of sewing machine 9.When making the processing end (S23: be), CPU62 rises compress member 24 and moves to the setting lifting position (S24) of using guidance panel 66 to set, returns S11, carries out the later step of S11 repeatedly.
In the above-mentioned explanation, during sewing finishing, CPU62 control compress member 24 rises it, but the processing of S24 also can be set in S24.This occasion, compress member 24 still are in down position when sewing finishing.At this moment, the operator also can carry out switching manipulation through other approach, under this state, makes compress member 24 move to lifting position.
More than in the explanation; Potentiometer 55 and compress member go up and down to control particularly S11～S13 etc. and are equivalent to the operational ton test section; The compress member goes up and down to control particularly S18, S19 and lifting position and sets and control particularly S52 etc. and be equivalent to motor controling part (drive source control part); Lifting position is set and to be controlled particularly S52 etc. and be equivalent to drive amount change portion; Guidance panel 66 and lifting position are set control and are waited and be equivalent to the configuration part, and the up-down of compress member controls particularly that S20, S22 etc. are equivalent to start-up control portion.
The effect of explanation compress member up-down control below.
For example, shown in figure 10, when being in, foot pedal 57 ends the zone, when compress member 24 is positioned at from the lifting position of the high 25.0mm of needle plate 12 upper surfaces, and the operator is carved into t2 during from t0 and constantly foot pedal 57 is stepped on position the way that arrives operating space.This occasion, the detection voltage of potentiometer 55 changes to " 3.12V " from " 1.5V ".When the detection voltage of potentiometer 55 arrives the t1 of beginning voltage " 2.0V " of operating space, be carved into the t2 moment corresponding with " 3.12V ", CPU62 makes compress member 24 drop to decline height and position " 5.0mm " midway from the highest height and position " 25.0mm " rapidly with the high speed corresponding with the speed of stepping on of foot pedal 57.
At this moment; Though it is not shown; But when the operator ends the stepping on action of foot pedal 57 and foot pedal 57 when rising (returning) original height and position before stepping on, CPU62 makes compress member 24 and foot pedal 57 residing height and positions and return speed thereof accordingly with rising promptly at a high speed.
The machining cloth W that the operator will make usefulness carries to put on the plate 16 at cloth and performs contraposition; Constantly step on operation foot pedal 57 once more at t3 then; Be depressed to rapidly when making the zone, the detection voltage of potentiometer 55 is increased to more than " 3.40V " from t2 " 3.12V " constantly.CPU62 descends the height and position " 5.0mm " of compress member 24 from the way that descends, and compress member 24 is pressed the machining cloth W above the eedle presser 12.Meanwhile, beginning is made in the CPU62 indication, carries out and makes processing.When this makes beginning, utilize the elastic force of compression helical spring 27, effect is best pressing force concerning this compress member 24 on compress member 24.
Begin to make when handling, the operator can end the operation of stepping on of foot pedal 57.Finish to make when handling, compress member 24 automaticitys ground rises rapidly and turns back to predefined setting lifting position.Using guidance panel 66 to set the occasion that makes compress member 24 maintenance decline states along with the end of making processing for, finish even make processing, compress member 24 does not rise yet.
Like this; Adopt present embodiment; Owing to use potentiometer 55 to detect the following amount of stepping on of foot pedals 57, compress motor 32 is controlled to compress member 24 is risen or drops to the corresponding position of the amount of stepping on effectively down with detected foot pedal 57, compress motor 32 is controlled to makes compress member 24 rise or descend simultaneously with the speed corresponding with the service speed of foot pedal 57; Therefore, the operator can make compress member 24 move to the arbitrary height position corresponding with the following amount of stepping on of the foot pedal of stepping on 57.Can promptly move compress member 24 with the speed corresponding,, can improve the operation property of making operation so the descending operation of compress member 24 is oversimplified with the service speed of foot pedal 57.
Owing to be to detect in the following amount of stepping on to start electrical motor of sewing machine 9 when making the zone according to foot pedal 57; Therefore; Only needing that foot pedal 57 is crossed operating space is depressed to and makes the zone; Just can make beginning, can increase substantially and make the operation property that begins to operate with the compress action indication linkedly of compress member 24.
The change form of the foregoing description is described below.
1) as the compress motor 32 of drive pressure cloth apparatus 20, also can adopt various motor such as DC servomotor to replace stepper motor, in a word, as long as the compress drive source is set.
2) can change termination zone, the operating space of being distinguished on the foot pedal 57, the size of making the zone according to the machine and the kind of the Sewing machines that is suitable for, perhaps also can change by the operator.
3) for the rate of climb of the compress member 24 after the sewing finishing, the decrease speed that descends in the time of also can storing compress in advance makes the rate of climb identical with this decrease speed.
4) cloth-pressing device 20 of Sewing machines of the present invention is not only applicable to automatic figure knotting Sewing machines; Also be applicable to various industrial sewing machines and home-use Sewing machines; As operating body, be not limited to foot pedal 57, the kneepad of also operating certainly (knee pedal) by operator's knee.
5) in S17, be to use detect voltage A, B comes and a reference value is made comparisons, next and a reference value compares with transformed value (height and position information) but also can use the driving corresponding with detecting voltage A, B.
6) the present invention is not limited to the example of above-mentioned explanation, and the insider can be in the scope that does not break away from aim of the present invention, and additional various changes are implemented to the foregoing description, and the present invention also comprises these change forms.
Claims (6)
1. the cloth-pressing device of a Sewing machines has: make the compress member of pushing machining cloth near or leave the compress drive source of machining cloth, by the operating body that the operator operates and indicates electrical motor of sewing machine to start or stop, it is characterized in that, comprising:
Detect the operational ton test section of operator to the operational ton of said operating body; And
The drive source control part; This drive source control part is controlled said compress drive source and said compress member is moved on the position corresponding with the operational ton of the detected said operating body of said operational ton test section, controls said compress drive source simultaneously and said compress member is moved with the speed corresponding with the service speed of said operating body.
2. the cloth-pressing device of Sewing machines as claimed in claim 1; It is characterized in that; The operational ton test section form the termination zone can detect operation beginning side, with the continuous operating space in this terminations zone, with this operating space continuous make regional structure; Drive source control part control compress drive source makes the compress member after the operation of operating body gets into said operating space, begin to move.
3. the cloth-pressing device of Sewing machines as claimed in claim 2 is characterized in that, has start-up control portion, and this start-up control portion makes when making the zone electrical motor of sewing machine start being detected by the operational ton test section.
4. like the cloth-pressing device of each described Sewing machines in the claim 1～3, it is characterized in that the compress drive source is made up of stepper motor, the drive source control part has the encoder that detects the said stepper motor anglec of rotation.
5. like the cloth-pressing device of each described Sewing machines in the claim 1～3; It is characterized in that; Has the configuration part; This configuration part is the lifting position of this compress member with the arbitrary height set positions in the track that moves up and down of the compress member that moves up and down, and the drive source control part has drive amount change portion, and the distance that this drive amount change portion pushes according to said lifting position and said compress member between the down position of machining cloth changes compress drive source drives amount.
6. the cloth-pressing device of Sewing machines as claimed in claim 4; It is characterized in that; Has the configuration part; This configuration part is the lifting position of this compress member with the arbitrary height set positions in the track that moves up and down of the compress member that moves up and down, and the drive source control part has drive amount change portion, and the drive amount that distance between the down position of machining cloth changes stepper motor is pushed by this drive amount change portion according to said lifting position and said compress member.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005130221A JP4716170B2 (en) | 2005-04-27 | 2005-04-27 | Sewing machine presser foot |
| JP2005130221 | 2005-04-27 | ||
| JP2005-130221 | 2005-04-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1854371A CN1854371A (en) | 2006-11-01 |
| CN1854371B true CN1854371B (en) | 2012-06-27 |
Family
ID=37194802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100799151A Expired - Fee Related CN1854371B (en) | 2005-04-27 | 2006-04-27 | Compress device of sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4716170B2 (en) |
| CN (1) | CN1854371B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5253906B2 (en) * | 2007-07-05 | 2013-07-31 | Ｊｕｋｉ株式会社 | Sewing cloth presser lifting device |
| JP4478991B2 (en) * | 2008-02-15 | 2010-06-09 | ヤマトミシン製造株式会社 | Sewing machine lifting machine |
| JP2011152308A (en) * | 2010-01-28 | 2011-08-11 | Brother Industries Ltd | Cloth presser for sewing machine |
| CN102454053A (en) * | 2010-10-28 | 2012-05-16 | 吴江盛汇针织有限责任公司 | Regulating mechanism of straight sewing machine compacting device |
| JP2018015426A (en) * | 2016-07-29 | 2018-02-01 | ブラザー工業株式会社 | Sewing machine and control method of sewing machine |
| CN114368050A (en) * | 2022-02-18 | 2022-04-19 | 漳州市晨硕数控设备有限公司 | Full-automatic high-speed cushion leather nailing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2530967Y (en) * | 2001-12-25 | 2003-01-15 | 星菱缝机股份有限公司 | Driving device for presser feet of sewing machine |
| CN1511991A (en) * | 2002-11-12 | 2004-07-14 | 飞马缝纫机制造株式会社 | Cloth press device of sewing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6022958B2 (en) * | 1978-07-13 | 1985-06-05 | アイシン精機株式会社 | sewing machine safety device |
| JPS60176781A (en) * | 1984-02-23 | 1985-09-10 | Fuji Xerox Co Ltd | Laser thermal transfer type printer for copying machine |
| JPS62101287A (en) * | 1985-10-28 | 1987-05-11 | ブラザー工業株式会社 | Cloth presser raising and falling apparatus of sewing machine |
| JP2000262782A (en) * | 1999-03-12 | 2000-09-26 | Brother Ind Ltd | Cycle sewing machine |
| JP2003326017A (en) * | 2002-05-13 | 2003-11-18 | Juki Corp | Sewing machine |
| JP2005087230A (en) * | 2003-09-12 | 2005-04-07 | Brother Ind Ltd | Control device and control program of driving mechanism |
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2005
- 2005-04-27 JP JP2005130221A patent/JP4716170B2/en not_active Expired - Fee Related
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2006
- 2006-04-27 CN CN2006100799151A patent/CN1854371B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2530967Y (en) * | 2001-12-25 | 2003-01-15 | 星菱缝机股份有限公司 | Driving device for presser feet of sewing machine |
| CN1511991A (en) * | 2002-11-12 | 2004-07-14 | 飞马缝纫机制造株式会社 | Cloth press device of sewing machine |
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| Title |
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| JP昭55-14007A 1980.01.31 |
| JP昭60-176781U 1985.11.22 |
| JP特开2000-262782A 2000.09.26 |
| JP特开2005-87230A 2005.04.07 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4716170B2 (en) | 2011-07-06 |
| CN1854371A (en) | 2006-11-01 |
| JP2006304992A (en) | 2006-11-09 |
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